There are 4 NASA projects proposed to launch successors to JWST sometime after 2035, doing more foundational (heh) research: Lynx, HabEx, LUVOIR (with variants

There are 4 NASA projects proposed to launch successors to JWST sometime after 2035, doing more foundational (heh) research: Lynx, HabEx, LUVOIR (with variants A and B) and Origins. All still need to get past the initial research phase, and all but Lynx would greatly benefit from a launch vehicle that can cheaply and easily send 10s of tons into L2. Oh, and don't forget the contract from NASA for landing humans on the moon.